Hey this could open the Doors to healing for you........
From my personal experience I would try the Magnetic Pulser from SOTA.
It works well at relieving swelling and pain. In addition if it was me I would make or buy a MSM paste - mix MSM with pure aloe about 2 grams per ounce.
MSM= Methyl Sulfonyl Methane
If you search on "PEMF carpal" you will find references.
This link talks positively of PEMF for CPT. The Sota Mag Pulse has plenty of power. A steel washer placed on the pulser is thrown a good two feet. The gauss rating (measure of magentic field) is very high on the Sota. I use mine regularly for pain from a bad disc in my back. My son has it now to treat sprains in bruises collected from college basketball. It helps relieve pain quickly and the effets are cumualtive.
If it was me I would run it it for two twenty minute sessions and then repaeat 4 hours later. My hope would be that 3-4 treatments plus the MSM and you will have it under control.